author | mgronlun |
Wed, 30 Oct 2019 19:43:52 +0100 | |
changeset 58863 | c16ac7a2eba4 |
parent 52621 | f7309a1491d9 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.jfr.event.runtime; |
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import static jdk.test.lib.Asserts.assertEquals; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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import jdk.jfr.Recording; |
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import jdk.jfr.consumer.RecordedEvent; |
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import jdk.jfr.consumer.RecordedObject; |
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import jdk.test.lib.jfr.EventNames; |
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import jdk.test.lib.jfr.Events; |
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/** |
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* @test |
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* @summary Tests the JFR events related to modules |
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* @key jfr |
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* @requires vm.hasJFR |
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* @requires !vm.graal.enabled |
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* @library /test/lib |
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* @run main/othervm --limit-modules java.base,jdk.jfr jdk.jfr.event.runtime.TestModuleEvents |
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*/ |
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public final class TestModuleEvents { |
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private static final String MODULE_EXPORT_EVENT_NAME = EventNames.ModuleExport; |
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private static final String MODULE_REQUIRE_EVENT_NAME = EventNames.ModuleRequire; |
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private static final String UNNAMED = "<unnamed>"; |
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public static void main(String[] args) throws Throwable { |
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verifyRequiredModules(); |
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verifyExportedModules(); |
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} |
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private static void verifyRequiredModules() throws Throwable { |
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Recording recording = new Recording(); |
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recording.enable(MODULE_REQUIRE_EVENT_NAME); |
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recording.start(); |
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recording.stop(); |
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List<RecordedEvent> events = Events.fromRecording(recording); |
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assertDependency(events, "jdk.jfr", "java.base"); // jdk.jfr requires java.base (by default) |
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assertDependency(events, "java.base", "jdk.jfr"); // java.base requires jdk.jfr for JDK events, i.e. FileRead |
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recording.close(); |
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} |
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private static void assertDependency(List<RecordedEvent> events, String source, String required) throws Exception { |
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for (RecordedEvent e : events) { |
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String sourceModule = e.getValue("source.name"); |
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if (source.equals(sourceModule)) { |
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RecordedObject module = e.getValue("requiredModule"); |
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if (module != null) { |
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if (required.equals(module.getValue("name"))) { |
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return; |
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} |
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} |
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} |
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} |
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throw new Exception("Could not find module dependency between " + source + " and requires modeule "+ required); |
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} |
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private static void verifyExportedModules() throws Throwable { |
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Recording recording = new Recording(); |
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recording.enable(MODULE_EXPORT_EVENT_NAME); |
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recording.start(); |
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recording.stop(); |
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Map<String, String> edges = new HashMap<>(); |
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List<RecordedEvent> events = Events.fromRecording(recording); |
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events.stream().forEach((ev) -> { |
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String exportedPackage = getValue(ev.getValue("exportedPackage"), "name", UNNAMED); |
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String toModule = getValue(ev.getValue("targetModule"), "name", UNNAMED); |
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if (!toModule.equals("jdk.proxy1")) { // ignore jdk.proxy1 module |
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edges.put(exportedPackage, toModule); |
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} |
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}); |
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// We expect |
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// 1) jdk.jfr -> <unnamed> (because we use the package) |
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// 2) java.util -> <unnamed> (because we use the package) |
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// 3) jdk.jfr.events -> java.base (from the jfr design) |
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// 4) jdk.internal -> jdk.jfr (from the jfr design) |
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// Where 'a -> b' means "package 'a' exported to module 'b'" |
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assertEquals(edges.get("jdk/jfr"), UNNAMED); |
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assertEquals(edges.get("java/util"), UNNAMED); |
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assertEquals(edges.get("jdk/jfr/events"), "java.base"); |
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assertEquals(edges.get("jdk/internal"), "jdk.jfr"); |
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recording.close(); |
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} |
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// Helper function to get field from a RecordedObject |
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private static String getValue(RecordedObject ro, String field, String defVal) { |
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if (ro != null && ro.getValue(field) != null) { |
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return ro.getValue(field); |
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} else { |
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return defVal; |
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} |
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} |
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} |